I'm 5'4" 180lbs I bought a medium they fit so well ... I freaking love them
These are your typical fitting jeans with little to no stretch. So i imagine with time they will loosen up and be the perfect 5 star quality Im use to at Swank. If you are trying to decide between two sizes: getting the bigger size means instant comfort, buying the smaller of the two means you got to work them in. But they are super cute pants and here in perfect timing for my birthday !